Trailer truck



Dec. 21 ,1926. l',6l1,685

W. M. SHEEHAN TRAILER TRUCK" Filed August 12. 1925 have/afar MAL/AN (57/66/9144 zymwy I a :i can {i .ill ffum al y was 1.9

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iZi IlLiLIAM M. ElHElEl-IAN, U ST. LOUIS, ZVL'ESSOURI, ASSIGNOR TO COll/lllfON'WEALTH STEEL COMPANY,

or s'r. LOUIs. MIssoUur, a oonronarron or NEW JERSEY.

TRAILER TRUCK.

Application filed August 12, 1925.

My invention relates to railway rolling stock and consists in-an improved trailer truck for locomotives.

My invention particularly adapted for use in a trailer pan or other apparatus projecting in between the sides ofthe truck and below the top thereof.

The objects of my invention are to pro- 1 vide a more rigid truck framertructure without unduly increasing the weight of the truck and, if possible, to lighten the truck frame bya better arrangement of the frame elements. I accomplish this object by providing EI COIIlIIHUOUS draft member in a straightline between the points of attachment of draft devices to the truck frame. Preferably, this draft member extends through thelongitudinal center of the frame and, is braced intermediate its ends by a transverse member extending to the sides of the frame. .While not bodiment of my inventioml prefer to make the truck frame a single casting and to'form integrally therewith the pedestals, drawbar pockets, bailing plates, pivot bearings, and brake hanger brackets.

In the accompanying drawings which illustrate a selected embodiment of my invention,

Figure 1 is a top view of a one-piece casting embodying my invention with. the truck wheels shown in broken lines to indicate their positions relative to the frame when the truck is completed.

F i gut-e2 is a longitudinal vertical view on line 2-2 of Figure l. 4

Figure 3 is a side elevation of the truck frame.

-Figure 1 is a transverse vertical section. on

' line H of Figure 1.

The frame includeswheelpieces 1, which are preferably hl-l1lp8tl in cross section and have pedestals 2 formed integrally therewith. The ends of the wheel pieces 1 are connected to each other by transoms or end members 3 and 4-, the end member 3 having integrally formed therewi h a circular bean ing 5 for providing a radial connection to main frame of the locomotive or to another articulate unit. The rear transom has formed integrally therewith the drawbar pocket 6 and the draft gear housing 7-. While the frame s roughly rectangular 1n truck forming a part ofan electric locomotive in which there is no ash essential to the emtral longitudinal member Serial No. 49.734.

outline, the connections of the parts just mentioned include such diagonal or inclined ribs or other reinforcements as are indicated at 8, 9, and 10, respectively.

Extending between transoms 3 and 4; is a centrally located continuous vmen'iber ll which is l-shaped in cross section, the top langes of member 11 being with the top flanges of the wheel pieces 1 and with corresponding flanges formed on the ends of the v her 11 any pulling or luifiing stress istransmittcd directly from the front to the rear of the truck frame and hence from the loco,- motive frame to the underframe of the car. or other vehicle to which the locomotive is connected. Obviously, the provision of a straight member between the two draft con nections makes it unnecessary to'so stiffen the transverse members and the wheel pieces to such anezctent that they in themselves will be strong enough to take care of the draft and bufling stresses. If desired, a transverse brace 12 may be provided for member 11 intermediate the ends of the lat ter and connecting the wheel pieces with the draft member. This brace is also l-shaped in cross section. Preferably, pieces include integral brake hanger brackets 13, push pull pockets 14, equalizer fulcruins 15, and side bearing pads 16 for the rear end of the locomotive main frame or cradle.

id hile the above de cribed structure is the preferred embodimentof my invention, 11 contemplate the exclusive use of such modifications in the arrangement of the parts and other details asinay be suggested in the commercial. development of my invention as are included in my claims.

claim:

1. in a trailer truck, wheel pieces, transoins connecting the ends of said wheel pieces with recesses for receiving draft devices positioned in each transom and a coin tral longitudinal member connecting the inner walls of said recesses.

2. In a trailer truclr, wheel pieces, transoi'ns connecting thev ends of said wheel pieces with recesses for receiving draft devices positioned in each transom and a. cenconnecting the inner walls of said recesses, all formed integrally.

3. A trailer truck comprising wheel pieces,

preferably level.

frame. By means of memiii end pieces, a t0rwardly, located bearing for a radial connection to a locomotive main frame, a rearwardly located drawbar pocket, and a centrally located longitudinal dra'ft member connecting said bearing and pocket and located in substantially the same horiend pieces,

zontal-plane as said bearing and poeket.

4:. Atrailer truck Comprising wheel pieces, a torwardly located bear ng for a radial. connection to a locomotive main poeket, a centrally member, all of said parts beingjloeate'd in [substantially the same horizontal plane.

' ber connecting said 5. A trailer truck comprising Wheel pieces,

a centrally located draft memendtpieces, and transverse stlfi'eners for said draft member, allot end" -pieces,

same horizontal plane.

.bar'pocket, and

pedestals,

Y Lenses 6. A trailer truck frame formed of a onepieee cast-ins and including wheel pieees,

pedestals, radial connection bearing,- dra w ing said bearing; and pocket.

a single draft sill connect-- 7; A trailer-truck frame formed ot a one-- piece casting and including-Wheel pieces,

radial connection bearing, draw.-

bar )oclzet asindle' draft sill "connectin 7 O Y C) said bearing and p0cke't,and a transverse element vbetween said S111 and said Wheeb pieces intermediate said pedestals. A. one-p ece casting COITIPI'lSlIlg a truck frame having U-sl aped wheel PIGCQS,

longitudinal I-slia'pedmember located be and. a t

tween said Wheel pieces and adapted to transmit bailing and pulling stresses between the ends of said frame. 6 "In testimony whereof I hereunto ailix my Y signature this sixth day of August,'l925. said parts being located in substantially the WI L AM M. SHEEHAN, '5 

